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A roadmap for enriching rare cell populations from human post-mortem brain, demonstrated by 100% microglial purity (scRNA-Seq)

GSE333448 Homo sapiens (human) Single-cell RNA-seq 18 samples Submitted 2026/07/24 Platform GPL34284
At a glance

Single-cell RNA-seq · human · 18 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart.
Organism
Homo sapiens (human)
Samples
18 samples: 17 distinct titles, 1 of them repeatedGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Summary (written by the submitters)
This submission contains processed single-nucleus RNA-seq feature-barcode matrices generated to validate fluorescence-activated nuclei sorting (FANS) strategies for enrichment of microglia from frozen human post-mortem brain. Nuclei were isolated from neurologically unaffected donor tissue from parietal cortex, occipital cortex, and cerebellum, then sorted using panels based on NeuN, OLIG2, IRF8, PU.1, and SOX9.
Read the full summary ↓
The study benchmarks single-marker and multi-marker nuclear sorting strategies, including IRF8-positive enrichment, PU.1-positive enrichment, SOX9-positive astrocyte sorting, SOX9 dump-channel exclusion, and an extended four-channel panel enabling parallel recovery of neurons, oligodendrocytes, microglia, astrocytes, and an all-negative population. Initial validation experiments used 10x Genomics Chromium Single Cell 3' v3.1 chemistry. Subsequent validation used Illumina Single Cell 3' RNA Prep, T2, based on PIP-seq chemistry, as a lower-cost orthogonal workflow for routine sort-quality assessment.
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE333448_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA1469237. Searching any of these in the dataset finder brings you back here.

Study design
17 distinct titles, 1 of them repeated
snRNA-seq of post-mortem human occipital cort… ×2

How we read this: Read from 18 sample titles: 17 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.